PHP

What should I do when I request the database. There are only 10 items in stock on A website for purchasing products. at this time, each of the three members of A & nbsp; B & nbsp; C buys 4 items and submits them at the same time. In this case, what

Now we have a situation ~ In master-slave synchronization, there will always be slow query logs in the slave database. for example, if there are 1000 people running this program, there will always be a few & nbsp; It takes 2 seconds to run & nbsp; &

I want to read the second $ in a.txt. how can I get the data between the third $ and the third $? thanks !!! & Nbsp;, $ fp & nbsp ;=& nbsp; fopen ('filename', & nbsp; 'r'); $ question about how nu PHP reads TXT text I want to read the data from the

The php function used to count the directory file size just arrived at the company in the morning. The header tells me to write a small function to count the file size in the specified directory. I just went there. let's get started, fortunately, it'

[PHP] explanation of session storage method author: zhanhailiang date: 2013-03-15 first confirm whether the session is automatically enabled or needs to be manually enabled through session_start :; specifies whether the session module automatically

[Happy to learn php100 days] Day 2: crazy array & nbsp; previous link: Happy to learn php100 day first day this issue & #26684; Statement: & nbsp; why do some people learn php and always feel that some knowledge points are well-learned and some

I have come up with a theory of password solutions. 1 & nbsp; the machine is isolated from the intranet to act as a password server. only the intranet machine can apply for comparison of passwords and key insertion operations without connecting to

Evaluate a simple php to judge a variable & nbsp; can only be an integer greater than 1 & nbsp; for example, 1, 2, 4, 5, 6, 7, 8, 9, 32, 64, & lt ;? Php $ a & nbsp; = & nbsp; 2; // echo & nbsp; is_int ($ a) & amp; $ a & gt; 1 & nbs evaluate a simple

Ask the php experts to check the principles of this encryption algorithm function & nbsp; sys_auth ($ str, & nbsp; $ action & nbsp ;=& nbsp; 'encoding', & nbsp; $ key & nbsp ;=& nbsp; '') {$ key & nbsp ;=& nbsp; md5 ($ key); $ str & nbsp; seek php

I am a beginner in PHP and want to use PHP as a graduation design. However, I have to answer a lot of questions before I finish, remember to use Feixin to send emails. Otherwise, you need to apply for other methods. Http://blog.163.com/ruantieying@12

100 ask: image loading-user experience. for example, if you want to build a photo wall with waterfall & nbsp; layout, lazy & nbsp; loading is used because there are too many images, I also used screen scrolling loading, but it seems that the

Php page judgment user generated page language I now use opencart to design web pages, using two languages, simplified, traditional, currency RMB, HKD encountered a problem: how can I determine which language to use based on the user, and show only

IE9 cannot open the php page. please help me write code in the WAMP environment. every time IE9 runs the php page, a download dialog box pops up, but I can use the 360 browser for normal resolution! In addition, for all other php pages on the

A new demand for https recently comes about the https interface. The Target interface is https and the client is developed using php; I do not know much about https. what software should I install if the server uses https? (The web server is apache)

I am learning about the MVC framework. I know that V is a view, that is, an HTML template. C is the controller. enter the routing URL in the browser and then call the controller method. However, I have a question: whether the statements used to

Has anyone used ganglia? [img = http: // 124.127.116.37/ganglia_web5/graph. php? G = load_report & amp; z = medium & amp; c = unspecified & amp; m = load_one & amp; r = hour & amp; s = descending & amp has anyone used ganglia? [Img = http: // 124.12

BosS asked me to add an English page on the website. I didn't have a bosS and asked me to add an English page on the website. I didn't have any experienced bosS to do anything ,, add as if adding a Chinese character, but the content is different.

Development class & nbsp; HotkeyWidget & nbsp; extends & nbsp; widget & nbsp ;{& nbsp; & nbsp; & nbsp; public & nbsp; functio development of widgets in thinkphp Class HotkeyWidget extends Widget { Public function render ($ data ){ $ Node = M

Obtain a regular expression extraction code $ str = '& lt; a & nbsp; href = "http://item.taobao.com/item.htm? Id = 9694595974 & amp; ali_refid = a3_620362_1007: 1102370186: 7: 46702465U84 $ Str =' '; For example, extract all the hyperlinks

I haven't seen you for a long time. I officially started to develop my own Forum program ~~~~ Please pay attention to the address & nbsp; sorry for a long time. I officially started to develop my own Forum program ~~~~ Please follow the address http: